Capacitive sensor
First Claim
1. A capacitive sensor comprising a sensor sheet and a measuring instrument,the sensor sheet including:
- a central electrode layer;
a first dielectric layer laminated on the upper surface of the central electrode layer;
a second dielectric layer laminated on the lower surface of the central electrode layer;
a first outer electrode layer formed on the surface of the first dielectric layer on the opposite side of the central electrode layer side; and
a second outer electrode layer formed on the surface of the second dielectric layer on the opposite side of the central electrode layer side,in which the first dielectric layer and the second dielectric layer are formed from elastomers,the part where the central electrode layer and the first outer electrode layer face each other is designated as a first detection portion, while the part where the central electrode layer and the second outer electrode layer face each other is designated as a second detection portion,the sensor sheet is reversibly deformable, and the capacitances of the first detection portion and the second detection portion change with deformation, andthe measuring instrument being connected to the central electrode layer, the first outer electrode layer and the second outer electrode layer and measuring the capacitances of the first detection portion and the second detection portion,wherein the first dielectric layer and the second dielectric layer are deformed in a surface direction; and
the state of deformation of the sensor sheet is measured on the basis of the total capacitance by adding the capacitance of the first detection portion and the capacitance of the second detection portion.
1 Assignment
0 Petitions
Accused Products
Abstract
A capacitive sensor includes a sensor sheet having a central electrode layer and a measuring instrument. A first dielectric layer is laminated on the upper surface of the central electrode layer. A second dielectric layer is laminated on the lower surface of the central electrode layer. A first outer electrode layer is formed on the surface of the first dielectric layer. A second outer electrode layer is formed on the surface of the second dielectric layer. The central electrode layer and the first outer electrode layer face each other at a first detection portion. The central electrode layer and the second outer electrode layer face each other at a second detection portion. Capacitances of the detection portions change with deformation. The state of deformation of the sensor sheet is measured on the basis of the total capacitance by adding the capacitances of the first detection portion and the second detection portion.
14 Citations
6 Claims
-
1. A capacitive sensor comprising a sensor sheet and a measuring instrument,
the sensor sheet including: -
a central electrode layer; a first dielectric layer laminated on the upper surface of the central electrode layer; a second dielectric layer laminated on the lower surface of the central electrode layer; a first outer electrode layer formed on the surface of the first dielectric layer on the opposite side of the central electrode layer side; and a second outer electrode layer formed on the surface of the second dielectric layer on the opposite side of the central electrode layer side, in which the first dielectric layer and the second dielectric layer are formed from elastomers, the part where the central electrode layer and the first outer electrode layer face each other is designated as a first detection portion, while the part where the central electrode layer and the second outer electrode layer face each other is designated as a second detection portion, the sensor sheet is reversibly deformable, and the capacitances of the first detection portion and the second detection portion change with deformation, and the measuring instrument being connected to the central electrode layer, the first outer electrode layer and the second outer electrode layer and measuring the capacitances of the first detection portion and the second detection portion, wherein the first dielectric layer and the second dielectric layer are deformed in a surface direction; and the state of deformation of the sensor sheet is measured on the basis of the total capacitance by adding the capacitance of the first detection portion and the capacitance of the second detection portion. - View Dependent Claims (2, 3, 4, 5, 6)
-
Specification